Volkswagen Golf Service & Repair Manual: Draining refrigerant circuit using air conditioner service station
WARNING
| High-voltage on high-voltage system. Danger of
electric shock on air conditioner compressor! |
| Models with a high-voltage system: now de-energise
the high-voltage system
→ Electric drive; Rep. gr.93. |
|
| Depending on the type of equipment chosen, there may be
variations in the required procedure (always follow user's
manual for the equipment being used). |
| The refrigerant circuit must be discharged if parts of the
refrigerant circuit must be removed, if there is uncertainty
about the quantity of refrigerant in the circuit or if safety
measures require it. |
| All important operating instructions associated with the air
conditioner service station for working with refrigerants can be
found in the air conditioner service station operator's manual. |
| – |
Connect air conditioner service station to service
connections as described in the user's manual for the vehicle
→ Rep. gr.87 and bring into operation. |
 Note
| The possibility cannot be excluded that, along with the
refrigerant, refrigerant oil is extracted from the refrigerant
circuit. In order to ensure the lubrication of the air
conditioner compressor, the refrigerant oil quantity should be
topped up with fresh oil
→ Rep. gr.87. |
| On vehicles with air conditioner compressor and no magnetic
coupling (with air conditioner compressor regulating valve
-N280-) the engine should only run for < 10 minutes with empty
refrigerant circuit and closed refrigerant circuit (the air
conditioner compressor runs with it continually). The engine
speed must not exceed 2000 rpm. |
| On vehicles with air conditioner compressor and magnetic
coupling, the engine may be started as the air conditioning
system pressure switch -F129- or high-pressure sender -G65-
(checks whether refrigerant is in the circuit) switches off the
magnetic coupling as soon as there is no refrigerant in the
refrigerant circuit. |
|
|
|
Depending on the type of equipment chosen, there may be
variations in the required procedure; therefore always follow
the user's manual for the equipment being used.
...
Always follow the procedure described in the user's manual
for your air conditioner service station.
The procedure described here is that for a ...
Other materials:
Checklist
The following steps should always be carried out in the specified
order before working in the engine compartment :
Park the vehicle on a level and stable
surface.
Depress and hold the brake pedal until
the engine has stopped.
Switch on the electronic parking brake
Braki ...
Removing and installing tie-down rings
Note
Removal and installation are described for the left
vehicle side. Follow same instructions for the right side as
appropriate.
Special tools and workshop equipment
required
...
Leaks at shock absorbers
Shock absorbers are often replaced because of externally
visible leakage. Inspections on the test rig and in the vehicle
have shown that in the majority of cases this replacement is not
justified.
Slight loss of fluid (“sweating”) at ...
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Connecting air conditioner service station for measuring and checking
Evacuating refrigerant circuit using air conditioner service station